PCI/P2PDMA: Fix pci_p2pmem_find_many() kernel-doc

Remove reference to pci_p2pmem_dma(), which has never existed.

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Cai Huoqing <[e-mail]>
Signed-off-by: Bjorn Helgaas <[e-mail]>
Reviewed-by: Logan Gunthorpe <[e-mail]>

drivers/pci/p2pdma.c

···
 
 /**
  * pci_p2pmem_find_many - find a peer-to-peer DMA memory device compatible with
- *	the specified list of clients and shortest distance (as determined
- *	by pci_p2pmem_dma())
+ *	the specified list of clients and shortest distance
  * @clients: array of devices to check (NULL-terminated)
  * @num_clients: number of client devices in the list
  *